AnyPS5/docs/dev/debt/libSceMetadataReaderWriter.md

libSceMetadataReaderWriter technical debt

Additional callable exports

• Additional callable exports - 6 entries present in both version-labelled images are import-resolution declarations only. Neither label independently authenticates retail firmware provenance. Parameter lists, return types and behavior are unverified; parameterless int declarations are placeholders, not verified ABI contracts. Every entry throws through NotImplemented_nid_no_patch. Unidentified names use literal NID aliases. No runtime functionality is implemented. Data exports require separate layout and ownership analysis. Identified candidate names match their NIDs in the public symbol database or supplemental catalog.

Name	NID
Unknown	2oFr2hbrkRs
Unknown	ElB1bNKymPg
Unknown	GCOzTsybYr0
Unknown	Ly4V1dsyKCA
Unknown	YeIbFGmyUVM
Unknown	ckVz4iaNj4E

• Older callable NIDs: 2 unidentified exports have unverified names, signatures and behavior. These are throwing import-resolution placeholders; no functionality is implemented. No matching NIDs were found in the later module inventory.

Unknown function info

• _ZN23sceMetadataReaderWriter10initializeEv, _ZN23sceMetadataReaderWriter11getMimeTypeERKSsRSt6vectorIjSaIjEE, _ZN23sceMetadataReaderWriter12getMimeTypesERKSsiPi, ZN23sceMetadataReaderWriter12readMetadataERKSsRKNS_8MetadataEjRS2, _ZN23sceMetadataReaderWriter13writeMetadataERKSsRKNS_8MetadataEj - names and NIDs match the PS5 3.20 inventory; signatures and behavior are unverified. No-parameter declarations resolve imports and throw through NotImplemented_nid_no_patch when called.
• ZN23sceMetadataReaderWriter13writeMetadataERKSsRKNS_8MetadataEjPS2, ZN23sceMetadataReaderWriter15ParserInterfaceC1ERKS0, ZN23sceMetadataReaderWriter15ParserInterfaceC2ERKS0, _ZN23sceMetadataReaderWriter16extractThumbnailERKSsjRNS_9ThumbnailE, _ZN23sceMetadataReaderWriter16getNumOfMimeTypeERKSsPi - names and NIDs match the PS5 3.20 inventory; signatures and behavior are unverified. No-parameter declarations resolve imports and throw through NotImplemented_nid_no_patch when called.
• _ZN23sceMetadataReaderWriter17getParserInfoListERSt6vectorINS_10ParserInfoESaIS1_EE, _ZN23sceMetadataReaderWriter18registerParserInfoERKSt6vectorINS_10ParserInfoESaIS1_EE, _ZN23sceMetadataReaderWriter20unregisterParserInfoEv, _ZN23sceMetadataReaderWriter23registerParserInterfaceEjRKNS_15ParserInterfaceE, ZN23sceMetadataReaderWriter5ValueaSERS0 - names and NIDs match the PS5 3.20 inventory; signatures and behavior are unverified. No-parameter declarations resolve imports and throw through NotImplemented_nid_no_patch when called.
• ZN23sceMetadataReaderWriter8Metadata11DeserializeERN3sce4Json5ValueERS0, _ZN23sceMetadataReaderWriter8Metadata11deleteFieldERKSs, _ZN23sceMetadataReaderWriter8Metadata15iterateAllFieldEPFiRKSsRKNS_5ValueEbE, _ZN23sceMetadataReaderWriter8Metadata8getFieldEiRSsRNS_5ValueERb, _ZN23sceMetadataReaderWriter8Metadata8setFieldERKSs - names and NIDs match the PS5 3.20 inventory; signatures and behavior are unverified. No-parameter declarations resolve imports and throw through NotImplemented_nid_no_patch when called.
• _ZN23sceMetadataReaderWriter8Metadata8setFieldERKSsRKNS_5ValueE, _ZN23sceMetadataReaderWriter8Metadata9SerializeERS0_RN3sce4Json5ValueE, _ZN23sceMetadataReaderWriter8MetadataC1EPFPvmEPFvS1_E, ZN23sceMetadataReaderWriter8MetadataC1ERKS0, _ZN23sceMetadataReaderWriter8MetadataC1ERKS0_PFPvmEPFvS3_E - names and NIDs match the PS5 3.20 inventory; signatures and behavior are unverified. No-parameter declarations resolve imports and throw through NotImplemented_nid_no_patch when called.
• _ZN23sceMetadataReaderWriter8MetadataC1Ev, _ZN23sceMetadataReaderWriter8MetadataC2EPFPvmEPFvS1_E, ZN23sceMetadataReaderWriter8MetadataC2ERKS0, _ZN23sceMetadataReaderWriter8MetadataC2ERKS0_PFPvmEPFvS3_E, _ZN23sceMetadataReaderWriter8MetadataC2Ev - names and NIDs match the PS5 3.20 inventory; signatures and behavior are unverified. No-parameter declarations resolve imports and throw through NotImplemented_nid_no_patch when called.
• _ZN23sceMetadataReaderWriter8MetadataD0Ev, _ZN23sceMetadataReaderWriter8MetadataD1Ev, _ZN23sceMetadataReaderWriter8MetadataD2Ev, ZN23sceMetadataReaderWriter8MetadataaSERKS0, _ZN23sceMetadataReaderWriter8finalizeEv - names and NIDs match the PS5 3.20 inventory; signatures and behavior are unverified. No-parameter declarations resolve imports and throw through NotImplemented_nid_no_patch when called.
• _ZNK23sceMetadataReaderWriter8Metadata13getFieldCountEv, _ZNK23sceMetadataReaderWriter8Metadata8getFieldEiRSsRNS_5ValueE, _ZNK23sceMetadataReaderWriter8Metadata8getValueERKSsRNS_5ValueE, _ZNK23sceMetadataReaderWriter8Metadata9dumpValueEv - names and NIDs match the PS5 3.20 inventory; signatures and behavior are unverified. No-parameter declarations resolve imports and throw through NotImplemented_nid_no_patch when called.
• _ZN23sceMetadataReaderWriter10initializeEv, _ZN23sceMetadataReaderWriter11getMimeTypeERKSsRSt6vectorIjSaIjEE, _ZN23sceMetadataReaderWriter12getMimeTypesERKSsiPi, ZN23sceMetadataReaderWriter12readMetadataERKSsRKNS_8MetadataEjRS2, _ZN23sceMetadataReaderWriter13writeMetadataERKSsRKNS_8MetadataEj - not exported by any firmware 13.42 module, so on 13.42 an import of these NIDs resolves to nothing in the firmware; the 3.20 declarations remain for titles built against older firmware. Measured as a payload process on a device: dlsym on the dlopen handle of libSceMetadataReaderWriter.sprx returns null for each of these names, while the other 22 names in Export.cpp resolve.
• ZN23sceMetadataReaderWriter13writeMetadataERKSsRKNS_8MetadataEjPS2, _ZN23sceMetadataReaderWriter16extractThumbnailERKSsjRNS_9ThumbnailE, _ZN23sceMetadataReaderWriter16getNumOfMimeTypeERKSsPi, _ZN23sceMetadataReaderWriter17getParserInfoListERSt6vectorINS_10ParserInfoESaIS1_EE, _ZN23sceMetadataReaderWriter18registerParserInfoERKSt6vectorINS_10ParserInfoESaIS1_EE - not exported by any firmware 13.42 module, so on 13.42 an import of these NIDs resolves to nothing in the firmware; the 3.20 declarations remain for titles built against older firmware. Measured as a payload process on a device: dlsym on the dlopen handle of libSceMetadataReaderWriter.sprx returns null for each of these names, while the other 22 names in Export.cpp resolve.
• _ZN23sceMetadataReaderWriter8Metadata11deleteFieldERKSs, _ZN23sceMetadataReaderWriter8Metadata15iterateAllFieldEPFiRKSsRKNS_5ValueEbE, _ZN23sceMetadataReaderWriter8Metadata8getFieldEiRSsRNS_5ValueERb, _ZN23sceMetadataReaderWriter8Metadata8setFieldERKSs, _ZN23sceMetadataReaderWriter8Metadata8setFieldERKSsRKNS_5ValueE - not exported by any firmware 13.42 module, so on 13.42 an import of these NIDs resolves to nothing in the firmware; the 3.20 declarations remain for titles built against older firmware. Measured as a payload process on a device: dlsym on the dlopen handle of libSceMetadataReaderWriter.sprx returns null for each of these names, while the other 22 names in Export.cpp resolve.
• _ZNK23sceMetadataReaderWriter8Metadata8getFieldEiRSsRNS_5ValueE, _ZNK23sceMetadataReaderWriter8Metadata8getValueERKSsRNS_5ValueE - not exported by any firmware 13.42 module, so on 13.42 an import of these NIDs resolves to nothing in the firmware; the 3.20 declarations remain for titles built against older firmware. Measured as a payload process on a device: dlsym on the dlopen handle of libSceMetadataReaderWriter.sprx returns null for each of these names, while the other 22 names in Export.cpp resolve.